DefaultURLMux returns the URLMux used by OpenTopic and OpenSubscription.

OpenRegistry opens the Registry identified by the URL given.

URLMux is a URL opener multiplexer.

Dao stores a DAO in the registry.

Edge links two vertices together.

Generic is the simplest Item implementation.

Item is the main interface for registry items.

Server represents a running server.

Service represents an instantiated service in the registry.

URLOpener represents types than can open Registries based on a URL.